William lang



W. LANG.

SASH LOCK.

(No Model.)

Paitentqd Nov. 17, 1885.

WIT NESE: E5-

INVEN m R N. PETERS. Fhoio-ljflwg'nphur, Washington. D. C.

UNITED STATES PATENT OEEIcE.

WILLIAM LANG, OF NEW YORK, N. Y.

SASH-LOCK.

SPECIFICATION forming part of Letters Patent No. 330,591, dated November17, 1885.

Application filed August 7, 1885.

To aZZ whom it may concern.-

Be it known that 1, WILLIAM LANG, of the city of New York, in the countyand State of New York, have invented a new and Improved Sash-Lock, ofwhich the following specification is a full, clear, and exactdescription.

This invention relates to a new sash-lock, which permits either sash tobe locked to the Window-frame. The invention consists in the variouselements of improvement hereinafter more fully pointed out.

In the accompanying drawings, Figure 1 is a transverse section of awindow-frame on the line a :r, Fig. 2. Fig. 2 is a front View of theright-hand side of the window-frame with the face-plate and plate gremoved. Fig. 3 is a detail front view of the plate m.

The letter a represents one of the upright sides or jambs of awindow-frame. b is the upper, and 0 the lower, sash. Within the frame athere are located two racks, d d, opposite, respectively, the upper andthe lower sash. Each of the racks d is pivotally connected to a lever,e, such levers turning on fulcrums formed by lugs f, projecting fromplates 9, rigidly fixed within frame a. The free ends of levers e areperforated for the admission of a sliding hand-rod, h, projecting out offrame a into the room. Small stops 2' on rod h cause the upper lever eto be oscillated when rod h is drawn into the room, and the lower levere to be oscillated when such rod is pushed outward. The plates g areperforated for the admission of pins 9', bearing with one end againstracks d and encircled by a spiral spring, is, between rack 11 and plateTo the lower end of the lower sash, a, there is affixed a pin, a, thatengages lower rack dwhen it is in its normal position. A similar pin,7), on the upper end of the upper sash, engages the upper rack, d. V

The operation of the parts thus far described is as follows: The pins 0b engaging racks (1 cl, the sashes c b are locked to the frame a. Whenit is desired to unlock the upper sash, the hand-rod h is drawn into theroom to oscillate upper lever e and to draw upper rack d backwardagainst the action of springs h. The pin 1) will now be free of rack d,and the sash b may be moved down or up.

Serial No. 173,838. (No model.)

The parts work in a similar way in relation to the lower sash, with theexception that the rodh must be pushed outward in order to disengage thepin 1" from rack d.

In order to unlock permanently either the upper or lower sash, the rod his provided with two notches made to engage a small faceplate, Z. Whenthe outer notch of rod h engages such plate, the upper sash will bepermanently unlocked, while when the inner notch engages such plate thelower sash will be permanently unlocked. The plate m (shown in Fig. 3)is the parting-bead of the sash-frameviz., one of the parts throughwhich the pins b 0 project into frame a.

In order to properly operate the sashes in connection with myimprovedfastening, Ihave devised the following pulley-and-weight ar- 7rangement: To upper pin, 1), is attached one end of a rope, n, passingover two upper pulleys, 0 0, and then forming a loop, upon which is hunga loose pulley, p, to which the weight g is secured. The rope n thenpasses over a third upper pulley, o, and over two lower pulleys, 0" 0,and is finally attached to the pin a of the lower sash, c. It will beperceived that when the upper sash is lowered the weight q is drawn up,while when the lower sash is raised the weight is lowered. Thus only oneweight is used at each side of the sash-frame. If desired, the knob ofhand-rod h may be removable, so that when taken off the sashes cannot beopened by unauthorized persons.

applied to one sash only, if desired.

I claim as my invention 1. The combination of frame a and sash b, havingpin b, with rack d, pivotally connected to lever e, and with rod h foroperating such lever, substantially as specified.

2, The combination of frame a and sashesb 0, having pins b a, with rope12, running over upper fast pulleys and secured to pins 1) c, and 5 withthe loose pulley p and weight g, suspended from rope 'Ib, substantiallyas specified.

WILLIAM LANG.

Witnesses:

F. v. BEIEsEN, BoB'r. H. RoY.

5 The improvement herein described may be

